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156 lines
4.5 KiB
156 lines
4.5 KiB
/*******************************************************************************
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µBlock - a browser extension to block requests.
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Copyright (C) 2014 The µBlock authors
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see {http://www.gnu.org/licenses/}.
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Home: https://github.com/gorhill/uBlock
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*/
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/* global sendAsyncMessage */
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// For background page or non-background pages
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/******************************************************************************/
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(function() {
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'use strict';
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/******************************************************************************/
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const {Services} = Components.utils.import(
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'resource://gre/modules/Services.jsm',
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null
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);
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self.vAPI = self.vAPI || {};
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/******************************************************************************/
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// http://www.w3.org/International/questions/qa-scripts#directions
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var setScriptDirection = function(language) {
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document.body.setAttribute(
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'dir',
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['ar', 'he', 'fa', 'ps', 'ur'].indexOf(language) !== -1 ? 'rtl' : 'ltr'
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);
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};
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/******************************************************************************/
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vAPI.download = function(details) {
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if ( !details.url ) {
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return;
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}
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var a = document.createElement('a');
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a.href = details.url;
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a.setAttribute('download', details.filename || '');
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a.dispatchEvent(new MouseEvent('click'));
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};
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/******************************************************************************/
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vAPI.insertHTML = (function() {
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const parser = Components.classes['@mozilla.org/parserutils;1']
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.getService(Components.interfaces.nsIParserUtils);
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return function(node, html) {
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while ( node.firstChild ) {
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node.removeChild(node.firstChild);
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}
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node.appendChild(parser.parseFragment(
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html,
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parser.SanitizerAllowStyle,
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false,
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Services.io.newURI(document.baseURI, null, null),
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document.documentElement
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));
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};
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})();
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/******************************************************************************/
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vAPI.getURL = function(path) {
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return 'chrome://' + location.host + '/content/' + path.replace(/^\/+/, '');
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};
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/******************************************************************************/
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vAPI.i18n = (function() {
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var stringBundle = Services.strings.createBundle(
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'chrome://' + location.host + '/locale/messages.properties'
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);
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return function(s) {
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try {
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return stringBundle.GetStringFromName(s);
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} catch (ex) {
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return '';
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}
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};
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})();
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setScriptDirection(navigator.language);
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/******************************************************************************/
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vAPI.closePopup = function() {
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sendAsyncMessage(location.host + ':closePopup');
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};
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/******************************************************************************/
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// A localStorage-like object which should be accessible from the
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// background page or auxiliary pages.
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// This storage is optional, but it is nice to have, for a more polished user
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// experience.
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vAPI.localStorage = {
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PB: Services.prefs.getBranch('extensions.' + location.host + '.'),
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str: Components.classes['@mozilla.org/supports-string;1']
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.createInstance(Components.interfaces.nsISupportsString),
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getItem: function(key) {
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try {
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return this.PB.getComplexValue(
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key, Components.interfaces.nsISupportsString
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).data;
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} catch (ex) {
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return null;
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}
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},
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setItem: function(key, value) {
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this.str.data = value;
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this.PB.setComplexValue(
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key,
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Components.interfaces.nsISupportsString,
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this.str
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);
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},
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removeItem: function(key) {
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this.PB.clearUserPref(key);
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},
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clear: function() {
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this.PB.deleteBranch('');
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}
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};
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/******************************************************************************/
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})();
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/******************************************************************************/
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